Friday, January 24, 2003, 6:54:53 PM, you wrote: >> >> > if someone has VIA8233, VIA8233A, VIA8233C or VIA8235 chipset, could >> >> > you help the testing of the new driver? >> >> > the new driver code is found at >> >> > >> >> > http://www.alsa-project.org/~iwai/via82xx.c >> >> >> >> i has VIA8235 and ALC650 codec. After installing new driver from cvs from >> >> 20030113, there is following problem: >> >> >> >> In 5.1-channel dvd playback with xine using surround51 device, >> >> i has swapped Rear and Center/lfe channels. >> >> RL <-> Center, RR <-> LFE >> >> this can be fixed just by exchanging Rear and Center/LFE jacks >> >> >> i fixed this with following patch for via82xx.c >> >> >> >> 812,813c812,815 >> >> < case 5: slots = (1<<0) | (2<<4) | (5<<8) | (3<<12) | (4<<16); break; >> >> < case 6: slots = (1<<0) | (2<<4) | (5<<8) | (6<<12) | (3<<16) | (4<<20); >break; >> >> --- >> >> > // case 5: slots = (1<<0) | (2<<4) | (5<<8) | (3<<12) | (4<<16); break; >> >> > // case 6: slots = (1<<0) | (2<<4) | (5<<8) | (6<<12) | (3<<16) | (4<<20); >break; >> >> > case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break; >> >> > case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); >break; >> >> >> >> I'm not sure that it is alsa problem, xine' may be. >> >> TI> hmm, it could be due to the setting of ALC650. how is the status of >> TI> "Exchange Center/LFE" mixer switch? >> >> This switch has no effect. Strange. Usually its muted. >> Now i think this is ALC650 problem. >> Is there problem exist on via8235 with other codecs?
TI> the switch above is irrelevant to this behavior. sorry for confusion. TI> but there is another register bits, and i fixed it on the cvs. TI> please update your alsa-kernel tree via cvs and give a try. cvs from 25.01 don`t change this. as i understand we must to modify bits 15:14 in ALC650 vendor specific register MX6A (Multi-Channel Control). i see that value of this register is always 0000h. in addition, "Exchange Center/LFE" mixer switch, which must to set MX6A.3=1 do nothing. MX6A still has 0000h value. ALC650 uses following default slot mapping (as in AC’97 spec. rev2.2) if MX6A=0000h L R SL SR CEN LFE 3 4 7 8 6 9 now i`m again not sure that this is codec problem. can anyone test this with other codec ? Anton Worshevsky ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
